| 摘要 |
PROBLEM TO BE SOLVED: To stably manufacture artificial stone material which is stronger than semi-hard stone by using large amount of mud such as dredge soil.SOLUTION: In manufacturing an artificial stone material by hydration hardening a mixed material containing mud and a binder, the mixed material satisfies following conditions (a) to (c) and the mud contains 65 vol.% or more of particles having the particle diameter of 0.075 mm or less. (a) It contains mud of 40 vol.% or more. (b) The binder contains one or more kind selected from blast furnace slag fine powder, blast furnace slag fine powder to which lime powder and/or hydrated lime are added as an alkali stimulant, blast furnace cement and normal Portland cement. (c) The amount of the binder is 1.7 times of more to soil particle in the mud (solid content) in mass ratio and satisfies 1.20≤(mass of blast furnace slag fine particle+mass of the lime powder+mass of the hydrated lime+mass of normal Portland cement×2)/(mass of water in the mixed material)<2.0. |
